In the UK pretty much the majority of houses would have a downstairs toliet with just the toilet and a small sink in and (very infrequently) a shower

Only houses over a certain age. When I was growing up, the downstairs toilet in many houses was outside in the garden, and you'd to come indoors to wash your hands. In some cases it was the only toilet on the property. And people bathed in front of the kitchen fire in a tin tub.

When socialising, I may say "I'm off to the little girls room" or possibly "I'm going to scare some little boys" (but I think that one may be a bit of an in joke - if the ladies room has a line-up, I'm not beyond using the men's at a pinch - always warning them first: "female incoming, close your eyes!" Yes, I know... )

When all's said and done, we're a pretty casual mob.

I always ask my dog if she needs to "have a leak" on a trip. She knows when I say that, she has to make at least a show of doing so before we continue. (Oh, and she actually cocks her leg like a boy. Like mother, like daughter!) *snerk*

It's worth noting that if you asked where the bathroom was in a UK home, you might find yourself in a room with a bath, a sink... and no loo. It's not standard, but it's not at all unusual to have the toilet in its own little room next-door to the bathroom.

Now I think of it, my FIL's place in Tasmania has a bathroom with no loo—the loo is along the corridor!

I'm 23, born and raised in West Virginia (US), and now living in Alabama (also the in the US).

It depends on where I am, actually. At home, I call it the toilet or the bathroom (along with various other slang terms - the throne, the john, the crapper, just to name a few, lol). In public/mixed company (by that, I mean asking where it is in a public place or a like situation), I call it the restroom.

Logged

"Some of the most wonderful people are the ones who don't fit into boxes." -Tori Amos

"Restroom" or "ladies' room" for me, if it's pubic, "bathroom" if it's at a residence. At a ren faire, it's "privy", and if it's my own home or among good friends, I'll often jokingly refer to it as "the catbox" or "the library".